class_docstr: Classification task.
  
  Examples:
      >>> classification_task = Classification(num_classes=2)
      >>> classification_task.metrics = ['precision']
      >>> classification_task.num_classes
      2
      >>> classification_task.output_shape
      (2,)
      >>> classification_task.output_dtype
      <class 'int'>
      >>> print(classification_task)
      Classification Task with 2 classes
docstr: :return: target data type, expect `int` as output.
docstr_tok: [":","return",":","target","data","type",",","expect","`","int","`","as","output","."]
code: def output_dtype(self):
      """:return: target data type, expect `int` as output."""
      return int
  
file_path: MatchZoo/matchzoo/tasks/classification.py
imports: from matchzoo.engine.base_task import BaseTask
label_desc: Use image node_id 6 for calling the Classification obj's underlying member method code with example usage: obj.output_dtype() and returns: int